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/*****************************************************************************
* We use PAPI_state to get the counting state of an EventSet.This function *
* returns the state of the entire EventSet. *
*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "papi.h" /* This needs to be included every time you use PAPI */
#define ERROR_RETURN(retval) { fprintf(stderr, "Error %d %s:line %d: \n", retval,__FILE__,__LINE__); exit(retval); }
int main()
{
int retval;
int status = 0;
int EventSet = PAPI_NULL;
/****************************************************************************
* This part initializes the library and compares the version number of the *
* header file, to the version of the library, if these don't match then it *
* is likely that PAPI won't work correctly.If there is an error, retval *
* keeps track of the version number. *
****************************************************************************/
if((retval = PAPI_library_init(PAPI_VER_CURRENT)) != PAPI_VER_CURRENT )
{
printf("Library initialization error! \n");
exit(-1);
}
/*Creating the Eventset */
if((retval = PAPI_create_eventset(&EventSet)) != PAPI_OK)
ERROR_RETURN(retval);
/* Add Total Instructions Executed to our EventSet */
if ((retval=PAPI_add_event(EventSet, PAPI_TOT_INS)) != PAPI_OK)
ERROR_RETURN(retval);
if ((retval=PAPI_state(EventSet, &status)) != PAPI_OK)
ERROR_RETURN(retval);
printstate(status);
/* Start counting */
if ((retval=PAPI_start(EventSet)) != PAPI_OK)
ERROR_RETURN(retval);
if (PAPI_state(EventSet, &status) != PAPI_OK)
ERROR_RETURN(retval);
printstate(status);
/* free the resources used by PAPI */
PAPI_shutdown();
exit(0);
}
int printstate(int status)
{
if(status & PAPI_STOPPED)
printf("Eventset is currently stopped or inactive \n");
if(status & PAPI_RUNNING)
printf("Eventset is currently running \n");
if(status & PAPI_PAUSED)
printf("Eventset is currently Paused \n");
if(status & PAPI_NOT_INIT)
printf(" Eventset defined but not initialized \n");
if(status & PAPI_OVERFLOWING)
printf(" Eventset has overflowing enabled \n");
if(status & PAPI_PROFILING)
printf(" Eventset has profiling enabled \n");
if(status & PAPI_MULTIPLEXING)
printf(" Eventset has multiplexing enabled \n");
return 0;
}
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